Machine fob hulling and cleaning clover-seed



J. KUHN.

C\0ver Huller.

Patented June 25, 1861.

I Inventor:

% ZZW We tn esses:

N. PETERS Photo-Lithographer. washingnn. D, C.

UNTTED STATFIEiLTENT QFFICE.

JACOB KUHN, OF GENTERVILLE, PENNSYLVANIA.

MACHINE FOR HULLING AND CLEANING CLOVER-SEED.

Specification of Letters Patent No. 32,630, dated June 25, 1861.

To all whom it may concern:

Be it known that I, J AOOB Kunrn'of Centerville, in the county of Snyderand State of Pennsylvania, have invented a new and useful Improvement inMachines for Hulling and Cleaning Clover Seed; and I do hereby declarethat the following is a full, clear, and exact description of theconstruction and operation of the same, reference being had to theannexed drawings, making a part of this specification, in which Figurel, is a vertical longitudinal section of the improved machine; Fig. 2, asectional plan-view of the interior of the concave; Fig. 8, a sectional.side-view of the cylinder; and Figs. 4 and 5, transverse sections ofpertions of the said concave and cylinder, respectively, like letters,when on the different figures, indicating the same parts.

The nature of my invention consists, substantially as hereinafterdescribed, in the manner of constructing the teeth of the cylinder, andalso of those on the concave, whereby in operating together a moreperfect and expeditious hulling effect is produced without mashing theseed, and greater durability in the required conditions of the saidteeth or operating surfaces, of the said cylinder and concave, isattained.

My invention also consists in constructing the hopper in two distinctapartments opening, respectively, to the hulling and to the cleaningapartments of the machine, for the purpose of more safely expediting inthe process of hulling and cleaning.

In the drawings, A is the cylinder; B, the concave; C C the lowerscreen; D D the receiving drawer; and E E the two apartments in thehopper of the machine.

F represents the usual fan wheel; G the screen carrier; and H theircoupling-bar, within the usual case Ithe said bar connecting by a crankon the shaft of the said fan wheel. Power being applied to the pulley ofthe cylinder motion is thereby given to the screen carrier, and fan bymeans of a band K on the outer side of the case.

L, is an adjustable deflector for raising or lowering the direction ofthe blast, and M an adjustable slide for increasing or diminishing theoutlet space for the blast.

The teeth n-n, of the cylinder (A) are formed on steel plugs which havedouble beveled, rectangular heads, the upper or beveled surfaces ofwhich have V grooves and edges or teeth out in or on them parallel witheach other. These plugs are driven radially into the cylinder so as toleave their heads only, projecting as seen in Figs. 1, 3, and 5,theheads being made lower in front than in their rear, as seen in Fig. 5,and being also arranged around the cylinder in four parallel series,each series having about three rows of the heads arranged, along thecylinder, parallel with each other, yet so as to produce also the spiralarrangement of the heads, seen in Fig. 3the grooves and teeth of eachhead being also parallel with the said rows, as seen in the same figure.

The concave (B) consists of a cast-iron shell (made in longitudinalsections) whose inner side consists of alternating beveled ridges, o e,of double oblique teeth, and deep narrow grooves p 2, as seen in Fig. 2.The oblique grooves which produce the oblique teeth on each bevel of theridges (0 0), cross each other at the apex of each ridge and thusproduce a row of small pyramidal teeth thereonas seen in the samefigure.

)Vhen the cylinder (A) and concave (B) are arranged together, as seen inFig. 1, the apexes, of the plug heads on which the teeth of the cylinderare formed, come directly opposite the grooves (pp) of the concave (B),respectively; and the width of the said heads, corresponding with thewidth of the ridges (00) ,the apexes of the said ridges (00) comedirectly opposite to the narrow spaces, respectively, between the heads(-n-n) of the cylinder. It will therefore be seen that when the cylinderis rotated the feed will be carried by the inclined and beveled, toothedheads thereon, into the narrow space between the said cylinder andconcave, and rolled between them so as to rapidly tear off the hulls,and that the seed,

falling into the deep, narrow, grooves 7)7),

screen (C) allows only the hulled seed to pass I through it, and beindivided into two parts, C, C, as seen in Fig. 1, the part C is inclinedinward and discharges the unhulled seed which falls upon it from theouter end of C, and causes the same to roll down into the division D, ofthe drawer below; while the cleaned seed falls into the division D- theblast from the fan wheel (F) passing through and along both screens anddriving out the dirt'and chaffas indicated in Fig. l.

The two apartments, E and E, of the hopper, being constructed as shownin Fig. 1, serve as follows: The apartment E is used to supply to thecylinder and concave, the original feed, and such unhulled portions asmay fall into the division D of the drawer, from the screen C above, itas before described; while at the same time, any chaff which may befound among the hulled seed in division D of the drawer and requiringthe same to be again winnowed, can be readily separated without passingit again through the huller at the risk of crushing some of the seedsbytransferring the whole to the division E, of the hopper, from whence itwill, below the slide 1", therein, fall directly and gradually to thescreens and blastas indicated in Fig. 1.

The Whole apparatus is simple in construction, and can be easily managedand kept in perfect order for the purpose.

What I claim as new therein, of my invention, and desire to secure byLetters Patent, is-- 1. Constructing the teeth (92-10) of the cylinder(A), in the manner or form set forth and described; the same beingarranged thereon in relation to each other, in the manner specified.

2. Constructing the inner side of the concave (B), with the ridges 00 ofteeth, and the grooves 39-72, between the said ridges, as

set forth and described, and for the purpose of receiving, and operatingin combination specified.

JACOB KUHN. WVitnesses:

JOHN REBER, PETER BERRY.

